Same thing happened to me last week on a 08 RXP-X. I was out on the lake trying to toss myself off the ski (was extremely hot outside), thankfully I did not come off.. When I arrived back at the dock I pulled the landyard and the ski kept running, the machine would start again without the landyard as well. I took a quick look at the forms but did not see others with similar issues. I needed the ski back quickly for my vacation so brought it to the dealer. Cause was a bad post, $110 CAD for the post and 1.5 hours labour to diagnose and repair

I'm thinking of writing sea-doo regarding this, obviously the ski is out of warranty but this is a serious safety concern, if I had come off the ski it would have been gone and could have hurt someone on shore or on another boat. Safety parts such as this should have a lifetime warranty similar to seat belts and air bags in cars...

Funny thing is sometimes it works and sometimes it doesn't. I have been disconnecting the 6 pin plug so the battery doesn't drain when it won't shut off... I plan to live with it for a while... I hate to have a week or so of down time right now...